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I am debating doing the downpipes as my C63 with catless pipes was border line too loud. I would hope the turbos muffles the sound a bit.
What set up do you have and do you feel the downpipes are that much better than just a resonator delete? Some people claim you do not get any hp boost with downpipes?
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and everyone else too!!! were they even trying???? LOL!!!, thanx for sharing, good luck with the mods man!
Last edited by hyperion667; Apr 15, 2013 at 01:54 PM.
. You really think the other cars would not gun it at an event like this. They probably did not expect to get spanked by a 4200 pounds 4 door luxury sedan
I am debating doing the downpipes as my C63 with catless pipes was border line too loud. I would hope the turbos muffles the sound a bit.
What set up do you have and do you feel the downpipes are that much better than just a resonator delete? Some people claim you do not get any hp boost with downpipes?
If you want to get most power from this engine with only bolts on go with Weistec downpipes and tune because their tune is different than regular tune most tuners don't have tune for downpipes they just turn the O2 sensor off. I'm going with Weistec for future mods since they have almost everything for the M157 from Ecu tune to cooling system and turbo upgrade nothing wrong with my current setup
Many reputable vendors on this site. Do a quick search or pm me if you have any questions.












